accurate. according to the cdc, this is what the county looked like back in october with very minimal flu activity. as we move forward into november and december, the same story plays out as influenza reports start to spike in the south and by new years it's everywhere, just like with google. but here's the good news, if we move forward a week into 2013 the cdc map actually shows that influenza cases started to drop off. the center for disease control has actually seeing fewer flu cases, but in it's not unheard of for cases to dip and then pick back up again as it did in in san francisco, charles clifford kron 4 news. >> pam: if you're flying in or out of s-f-o this weekend, you could experience some delays. and they have nothing to do with the weather. kron 4's dan kerman explains. a closure of another type is causing problems for commuters on the dumbarton bridge. since the beginning of the year, budget issues have forced the closure of toll booth number 4.